Circuit board clamping device

Abstract

A circuit board clamping device comprises a lifting frame used for driving the clamping device to do lifting motion, a plurality of single-side clamping jaws are arranged below the lifting frame, the single-side clamping jaws are arranged along the periphery of the lifting frame and keep clamping inwards, and the multiple single-side clamping jaws located on the opposite sides of the lifting frame jointly form a clamping mechanism used for grabbing a circuit board. Due to the adoption of the technical scheme, compared with the prior art, the circuit board clamping device has the beneficial effects that a plurality of single-side clamping jaws are used for jointly forming a clamping mechanism to clamp and fix a circuit board from the side edge of the circuit board, so that the possibility of being in contact with the processing surface of the circuit board is reduced, and the processing quality of the circuit board is improved; the flexible chuck is arranged on the single-side clamping jaw and is in direct contact with the side edge of the circuit board, so that the side edge of the circuit board is prevented from being damaged in the clamping process, the clamping speed is increased, and the processing efficiency of the circuit board is further improved; and meanwhile, the buffer mechanism is arranged, so that the clamping device can be lifted and buffered when taking and placing the circuit board.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing equipment technology, and in particular to a circuit board clamping device. Background Technology

[0002] Circuit boards include PCBs, FPCs, and carrier boards. Circuit board gripping technology is an important part of the electronics manufacturing industry, involving the efficiency and quality control of automated production lines.

[0003] Currently, PCBs are commonly gripped and transported using suction cups during processing. Suction cup gripping uses vacuum suction to fix the PCB to the gripping device and then moves it to the designated location. This method is simple and effective, but some PCB processing requires maintaining a high degree of cleanliness on the processing surface. However, in order to maintain sufficient suction force, the suction cup cannot avoid contact with the processing surface of the PCB, which can easily cause contamination or oxidation to the processing surface.

[0004] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a circuit board clamping device to solve the above problems.

[0005] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solution of this utility model and facilitating the understanding of those skilled in the art. It should not be assumed that the above content is known to those skilled in the art simply because it has been described in the background section of this utility model. Utility Model Content

[0006] To overcome the shortcomings of the prior art, the present invention discloses a circuit board gripping device to solve the problem that existing circuit board gripping devices easily cause contamination to the circuit board processing surface.

[0007] This utility model discloses a circuit board clamping device, including a lifting frame for driving the clamping device to move up and down. Several single-sided grippers are provided below the lifting frame. The single-sided grippers are arranged along the outer periphery of the lifting frame and keep clamping inward. Several single-sided grippers located on opposite sides of the lifting frame together form a clamping mechanism for gripping the circuit board.

[0008] Preferred technical solution: A flexible chuck is provided on one side of the gripper, which can avoid damage to the circuit board when clamping the side.

[0009] Preferred technical solution: The flexible clamp has a positioning slot on its inner side, which is used to clamp and position the side of the circuit board, avoiding large-area contact with the surface of the circuit board.

[0010] Preferred technical solution: The positioning slot is a V-shaped groove, which can reduce the possibility of contact with the circuit board processing surface.

[0011] Preferred technical solution: The flexible clamp has a gradually narrowing structure that is wider at the top and narrower at the bottom. This provides space for clamping the circuit board while ensuring that the flexible clamp has a certain resistance to deformation, thus preventing the circuit board from coming loose due to deformation when clamping it.

[0012] Preferred technical solution: The single-sided gripper further includes a buffer mechanism and a clamping cylinder; the buffer mechanism includes a mounting plate, with a guide rod provided at the upper end of the mounting plate in the vertical direction, a limiting block provided at the top of the guide rod, a linear bearing slidably connected to the outer periphery of the guide rod, the linear bearing being fixed on the buffer block, the buffer block being fixed on the lifting frame, and a spring sleeved on the outer periphery of the guide rod between the mounting plate and the linear bearing; the clamping cylinder is located at the lower end of the mounting plate, the output end of the clamping cylinder is connected to the flexible gripper and its output direction is towards the inner side of the lifting frame, used to drive the flexible gripper to move towards the circuit board to clamp it.

[0013] Preferred technical solution: The clamping cylinder is a swing cylinder, which allows the flexible clamp to be held on the side of the circuit board by swinging.

[0014] Preferred technical solution: The clamping cylinder is a linear drive cylinder, which allows the flexible chuck to approach and clamp the side of the circuit board through linear movement.

[0015] Preferred technical solution: The mounting plate is equipped with two sets of parallel guide rods to ensure the stability of the single-sided gripper.

[0016] Preferred technical solution: The buffer block is connected to the lifting frame via an L-shaped connecting piece, and the connecting end of the L-shaped connecting piece is provided with a guide groove. The buffer mechanism is positioned and installed by the L-shaped connecting piece and its guide groove, which facilitates the pair-to-pair setting of the single-sided grippers on the lifting frame.

[0017] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:

[0018] This utility model discloses a circuit board clamping device, which uses several single-sided grippers to form a clamping mechanism to clamp and fix the circuit board from the side, reducing the possibility of contact with the circuit board processing surface and improving the processing quality of the circuit board. The single-sided grippers are equipped with flexible chucks that directly contact the side of the circuit board, avoiding damage to the side of the circuit board during clamping, which helps to increase the clamping speed and thus improve the processing efficiency of the circuit board. At the same time, a buffer mechanism is provided so that the clamping device can lift and buffer when picking up and putting down the circuit board. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a circuit board clamping device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the single-sided gripper in this utility model.

[0022] In the above attached diagrams, 1 is the lifting frame; 2 is the single-sided gripper; 21 is the buffer mechanism; 211 is the mounting plate; 212 is the guide rod; 213 is the limit block; 214 is the linear bearing; 215 is the buffer block; 216 is the spring; 22 is the clamping cylinder; 23 is the flexible chuck; 23a is the positioning slot; 24 is the L-shaped connecting piece; 24a is the guide groove; 3 is the circuit board; and 31 is the machined surface. Detailed Implementation

[0023] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and their synonyms, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0026] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0027] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," "fitting," and "fitting" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Similarly, "fitting" can mean completely or partially fitted. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] Example 1:

[0030] like Figure 1 As shown, this utility model discloses a circuit board gripping device, including a lifting frame 1 with a size similar to that of the circuit board 3. Sixteen single-sided grippers 2 are provided below the lifting frame 1 for gripping the circuit board 3. The main components of this utility model will be described in detail below:

[0031] like Figure 1 and Figure 2 As shown, the single-sided grippers 2 are arranged along the outer periphery of the lifting frame 1 and maintain an inward gripping motion. Sixteen single-sided grippers 2 located on opposite sides of the lifting frame 1 together form a gripping mechanism for grasping circuit boards. Each single-sided gripper 2 has a flexible chuck 23 on one side for gripping the circuit board 3. The flexible chuck 23 is connected to the single-sided gripper 2 by screws. The inner side of the flexible chuck 23 has a positioning groove 23a. During gripping operations, the positioning groove 23a is used to limit and lock the side of the circuit board 3. It should be noted that the flexible chuck 23 and the single-sided gripper 2 can also be connected by snap-fit ​​or adhesive methods. It should also be noted that in this embodiment, the flexible chuck 23 limits and locks the side of the circuit board 3 through the positioning groove 23a, but in other embodiments, the flexible chuck 23 can directly grip the circuit board 3 without the positioning groove 23a.

[0032] The method and principle of this utility model are as follows: When it is necessary to clamp the circuit board 3, the lifting frame 1 drives the single-sided gripper 2 to move synchronously to the side of the circuit board 3, and then the positioning slot 23a on the flexible chuck 23 positions and clamps the side of the circuit board 3; during this process, the sixteen single-sided grippers 2 simultaneously clamp the circuit board 3 on its outer periphery, keeping its outer periphery under force balance. At the same time, the multi-point clamping reduces the force between a single single-sided gripper 2 and the circuit board 3, avoiding clamping damage to the circuit board 3. The clamping mechanism composed of the single-sided grippers 2 can smoothly clamp and transfer the circuit board 3. Meanwhile, the side clamping can avoid contact with the processing surface 31 of the circuit board 3, improving the processing quality of the circuit board 3.

[0033] Example 2:

[0034] like Figure 1 and Figure 2 As shown, in order to further avoid contamination of the processing surface 31 of the circuit board 3, the positioning slot 23a is a V-shaped slot. During the clamping process, the circuit board 3 is clamped and fixed by the narrow bottom end of the V-shaped slot. The closer the positioning slot 23a is to the processing surface 31 of the circuit board 3, the wider its opening is, which greatly reduces the possibility of contact with the processing surface 31.

[0035] Example 3:

[0036] like Figure 1 and Figure 2 As shown, to ensure the stability of the clamping effect of the clamping device, the flexible chuck 23 has a gradient structure that is wider at the top and narrower at the bottom. Its lower end is more flexible, which can avoid damage to the side of the circuit board 3 during the clamping process. The gradient structure that is wider at the top and narrower at the bottom can improve the overall deformation resistance of the flexible chuck 23 and prevent the circuit board 3 from falling off due to excessive deformation caused by force during the clamping process.

[0037] Example 4:

[0038] like Figure 1 and Figure 2As shown, to facilitate clamping the circuit board 3, the single-sided gripper 2 also includes a buffer mechanism 21 and a clamping cylinder 22. The buffer mechanism 21 includes a mounting plate 211, with a guide rod 212 vertically positioned at the upper end of the mounting plate 211. A limiting block 213 is positioned at the top of the guide rod 212, and a linear bearing 214 is slidably connected to the outer periphery of the guide rod 212. The linear bearing 214 is fixed to a buffer block 215, which is fixed to the lifting frame 1. A spring 216 is sleeved on the outer periphery of the guide rod 212 between the mounting plate 211 and the linear bearing 214. The clamping cylinder 22 is located at the lower end of the mounting plate 211. The output end of the clamping cylinder 22 is connected to a flexible clamp 23, and its output direction faces the inner side of the lifting frame 1. The clamping cylinder 22 drives the flexible clamp 23 to move towards the circuit board 3 to clamp it. The clamping cylinder 22 can be a swing cylinder or a linear drive cylinder. During the picking and placing of the circuit board 3, the buffer mechanism 21 is used to reduce the collision impact generated during the lifting process.

[0039] Example 5:

[0040] like Figure 1 and Figure 2 As shown, to improve the stability of the clamping device, two sets of parallel guide rods 212 are provided on the mounting plate 211.

[0041] Example 6:

[0042] like Figure 1 and Figure 2 As shown, to facilitate the installation of the gripping device, the buffer block 215 is connected to the lifting frame 1 through the L-shaped connecting piece 24. The connecting end of the L-shaped connecting piece 24 is provided with a guide groove 24a. By using the L-shaped connecting piece 24 in conjunction with the guide groove 24a, the single-sided gripper 2 can be quickly disassembled and assembled on the lifting frame 1, making its positioning and assembly more convenient.

[0043] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A circuit board clamping device, comprising a lifting frame (1), characterized in that: The lifting frame (1) is provided with several single-sided grippers (2) below it. The single-sided grippers (2) are arranged along the outer periphery of the lifting frame (1) and keep clamping inward. The several single-sided grippers (2) located on the opposite side of the lifting frame (1) together form a clamping mechanism for gripping the circuit board.

2. The circuit board clamping device according to claim 1, characterized in that: The single-sided gripper (2) is provided with a flexible gripper (23).

3. The circuit board clamping device according to claim 2, characterized in that: The flexible clamp (23) has a positioning slot (23a) on its inner side.

4. The circuit board clamping device according to claim 3, characterized in that: The positioning slot (23a) is a V-shaped slot.

5. A circuit board clamping device according to claim 4, characterized in that: The flexible clamp (23) has a gradient structure that is wider at the top and narrower at the bottom.

6. The circuit board clamping device according to claim 2, characterized in that: The single-sided gripper (2) further includes a buffer mechanism (21) and a clamping cylinder (22); the buffer mechanism (21) includes a mounting plate (211), the upper end of the mounting plate (211) is provided with a guide rod (212) in the vertical direction, the top of the guide rod (212) is provided with a limiting block (213), the outer periphery of the guide rod (212) is slidably connected with a linear bearing (214), the linear bearing (214) is fixed on a buffer block (215), the buffer block (215) is fixed on the lifting frame (1), and a spring (216) is sleeved on the outer periphery of the guide rod (212) between the mounting plate (211) and the linear bearing (214); the clamping cylinder (22) is located at the lower end of the mounting plate (211), the output end of the clamping cylinder (22) is connected to the flexible chuck (23) and its output direction is towards the inner side of the lifting frame (1).

7. A circuit board clamping device according to claim 6, characterized in that: The clamping cylinder (22) is a swing cylinder.

8. A circuit board clamping device according to claim 6, characterized in that: The clamping cylinder (22) is a linear drive cylinder.

9. A circuit board clamping device according to claim 6, characterized in that: The mounting plate (211) is provided with two sets of parallel guide rods (212).

10. A circuit board clamping device according to claim 6, characterized in that: The buffer block (215) is connected to the lifting frame (1) through an L-shaped connecting piece (24), and the connecting end of the L-shaped connecting piece (24) is provided with a guide groove (24a).

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